A man travels at a rate of 25m/sec. If he travels for 10½hrs, how many kilometres has he covered?
262.5
945
970
995
1822.9
Correct answer is B
No explanation has been provided for this answer.
The radii of two similar cylindrical jugs are in the ratio 3:7. Calculate the ratio of their volumes
1 : 04
3 : 07
9 : 49
0.086111111
27 : 343
Correct answer is E
radius ratio volume
r = r3
so that
3 : 7 = 33:73 = 27 : 343
Simplify the expression: Log416 + Log327 + Log84096
-9
13
19
3
9
Correct answer is E
WHERE:
Log416 = 2
Log327 = 3
Log84096 = 4
: 2 + 3 + 4 = 9
Given that x2 + y2 + k = 60 and x = √10 when y = 4, find the value of k.
56
34
32
-34
-56
Correct answer is B
x2 + y2 + k = 60
(√10)2 + (4)2 + k = 60
k + 10 + 16 = 60
k = 60 - 26
k = 34